protected virtual void OnDropCheck(object sender, RoutedEventArgs e)
{
DropCheckEventArgs Args = (DropCheckEventArgs)e;
IExtendedTreeNode DropDestinationItem = Args.DropDestinationItem as IExtendedTreeNode;
if (DropDestinationItem != null && DropDestinationItem.Children.Count == 0 && TreeViewSettingsWindow.AreLeavesSealed)
{
Args.Deny();
}
}
protected virtual void OnDropCheck(object sender, RoutedEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
DropCheckEventArgs Args = (DropCheckEventArgs)e;
IExtendedTreeNode DropDestinationItem = (IExtendedTreeNode)Args.DropDestinationItem;
if (DropDestinationItem != null && ((ICollection <IExtendedTreeNode>)DropDestinationItem.Children).Count == 0 && TreeViewSettingsWindow.AreLeavesSealed)
{
Args.Deny();
}
}